UMary Allen
Kwabaninzi, ukrebe omkhulu omhlophe sisilo esikhulu esisuka enzulwini yaye usesinye sezona zidalwa zibangel’ umdla elwandle. Enyanisweni, asiyontlanzi ekhohlakeleyo.
iimpawu
Bakhangeleka njani ookrebe abakhulu?
Ukrebe omkhulu ngomnye wabo babizwa ngokuba ngookrebe bokwenene. Kuba unenkangeleko yokrebe: Umzimba wakhe umile okwe-torpedo, nto leyo eyenza ukuba ibe yindadi egqibeleleyo. Impumlo i-conical kwaye itsolile. Iphiko le-caudal elimilise okwerhengqa, iphiko elingunxantathu, kunye namaphiko amade e-pectoral, anombala omnyama kwiincam, azithandabuzeki. Isisu simhlophe, umva ublowu ukuya kungwevu-mdaka.
Ngokomlinganiselo, ukrebe omkhulu omhlophe unobude obuziimitha ezi-4.5 ukuya kwezi-6.5, abanye bade bafikelele kwiimitha ezisixhenxe. Iisampulu ezincinci zinobunzima obungama-700 eekhilogram, eyona inkulu ifikelela kuma-2000 eekhilogram. Umlomo ubanzi kwaye ungqukuva kancinci, amazinyo anonxantathu. Amehlo amakhulu kunye nemikrolo emikhulu yegill iyamangalisa.
Bahlala phi ookrebe abakhulu?
Ukrebe omkhulu ufumaneka phantse kuzo zonke iilwandle, ngakumbi kwiindawo ezinemozulu epholileyo. Nangona kunjalo, ibonakala nakwiilwandle ezitshisayo kunye neetropiki, apho idla ngokufumaneka kuphela ebusika. Kuyinto eqhelekileyo ukubona kude kunxweme lwaseMzantsi Afrika, eOstreliya, eNew Zealand naseCalifornia. Ookrebe abakhulu abamhlophe bazingela kumanzi angekho nzulu kufutshane nonxweme apho kuhlala khona iintini ezininzi neengonyama zolwandle. Ngaphandle koko, uhlala ehlala ngaphezu kweeshelufu zelizwekazi kunye nakwimithambeka yazo. Ezi ziindawo eziselwandle apho imiphetho yamazwekazi yehla ngomnqantsa ukuya kulwandle olunzulu.
Ukrebe omkhulu omhlophe uqubha ngokuthe ngqo kumphezulu wamanzi kunye nobunzulu obumalunga ne-1300 yeemitha. Ngamanye amaxesha uhamba imigama emide kakhulu.
Ngaba ubudala kangakanani ookrebe abamhlophe bafumana?
Akwaziwa ukuba ookrebe abakhulu abamhlophe banokufikelela kowuphi ubudala. Noko ke, abaphandi barhanela ukuba basenokuba badala njengabantu. Ubudala bokrebe bunokumiselwa ngokuqikelelwayo kusetyenziswa ubungakanani bomzimba wakhe: ukrebe omkhulu omhlophe oziimitha ezintlanu ukuya kwezintandathu ubude uphakathi kweminyaka engama-21 ukuya kuma-23 ubudala.
Ziphathe
Baphila njani ookrebe abakhulu?
Ukrebe omkhulu omhlophe sisitshaba esigqibeleleyo. Ngenxa yokuba unelungu elikhethekileyo ekhaleni lakhe: into ebizwa ngokuba yi-ampoules ye-Lorenzini. Ezi zimbobo ezizaliswe yinto yegelatin. Ngezi zinto, unokuva amasimi ombane wexhoba lakhe kumgama omde. Amehlo kunye neempumlo ziphuhliswe ngcono kunabanye ookrebe. Ngokomzekelo, uyakwazi ukubona imibala aze abone nelona vumba lincinane emanzini.
Ukongezelela, inethiwekhi ekhethekileyo yemithambo yegazi inika amehlo kunye neempumlo ukuze zikwazi ukusabela ngokukhawuleza. Ukuhamba kakuhle kwegazi kukwasisizathu sokuba ukrebe omkhulu abe nobushushu bomzimba onyukileyo kwaye akanagazi libandayo kwaye alixhomekeke kubushushu bemekobume.
Ubushushu bomzimba wokrebe omkhulu buhlala bukwiqondo le-10 ukuya kwi-15 ngokukaCelsius ngaphezu kobushushu bamanzi. Kwelinye icala, oku kumenza akwazi ukudada ngokukhawuleza yaye, kwelinye icala, akwazi ukuhlala kulwandle olubandayo. Iziganeko ezifanayo zikhona kuphela kwabanye ookrebe abakhulu nakwi tyhuna enkulu okanye i-swordfish.
Ukuza kuthi ga kutshanje, bekucingwa ukuba ukrebe omkhulu usisizungu ngokupheleleyo. Ngoku kuyaziwa ukuba zizilwanyana ezihlala kunye kwaye zihlala zenza amaqela amancinci. Nokuba abantu abaninzi boyika kakhulu ukrebe omkhulu omhlophe ngenxa yeengxelo ezibaxiweyo:
Baninzi kakhulu ookrebe ababulawa ngabantu kunokuba abantu babulawa ngabamhlophe abakhulu. Ngokusisiseko, abantu abayonxalenye yecebo likakrebe omkhulu omhlophe. Kodwa ookrebe bayathanda ukuva izandi kwaye banomdla wokwazi.
Xa kukho into ehamba emanzini, ookrebe baqubha besiya kuloo mthombo wengxolo. Yiyo loo nto kusenzeka ukuba bafune “ukuvavanya” isilwanyana esinokuba lixhoba – esinokuba sikwangumntu – ngokulunywa ngolingo. Noko ke, ukulunywa nje kanye ngolo hlobo kwenzakalisa abantu ngokunzulu yaye kudla ngokubulala.
Abahlobo kunye neentshaba zikakrebe omkhulu omhlophe
Nokuba ukrebe omkhulu yintlanzi enkulu edla inyama, kukho amarhamncwa amakhulu elwandle. Iminenga ebulalayo mikhulu kakhulu kwaye inamaxhoba anobuchule kangangokuba inokude ibe sisisongelo kookrebe abakhulu abamhlophe. Noko ke, kunqabile ukuba i<em>pod of killer whales ibulale ukrebe omkhulu omhlophe. Olona tshaba lukhulu lukakrebe omhlophe yindoda. Uzingela le ntlanzi enqabileyo, nangona ikhuselwe.
Bazala njani ookrebe abakhulu?
Akukho nto ingako yaziwayo malunga nokuzala kookrebe abakhulu abamhlophe. Ziyi-viviparous, oku kuthetha ukuba umntwana ukhula esibelekweni. Nangona kunjalo, akwaziwa ukuba iimazi zikhulelwe ixesha elingakanani na. Abaphandi bacinga ukuba kuthatha iinyanga ezilishumi elinesibini ukuba ookrebe abancinci bazalwe. Emva koko sele ifikelele kwi-150 centimeters ubude.
Akwaziwa nokuba mangaphi amantshontsho imazi enokuba nawo ngexesha elinye. Izilwanyana ezinabantwana abasithoba sele zibonwe. Kukho into engaqhelekanga kukrebe omkhulu omhlophe: kwenzeka ukuba abancinci balwe omnye komnye esibelekweni sikanina.